A ship performance testing method

Abstract

The present invention relates to the field of ship technology, and in particular to a ship performance test method. The method comprises: driving a vehicle onto a first inclined gantry and stopping after reaching a designated position; moving the ship in the water to one side of the first inclined gantry and fixing it, with the bow of the ship facing the rear of the vehicle; lowering the ship's gangway, so that one end of the ship's gangway overlaps the first inclined gantry, and the ship's gangway faces the rear of the vehicle; and performing loading and unloading tests on the vehicle to obtain the performance parameters of the ship. The present application provides a ship performance test method, which utilizes the first inclined gantry in the ship launching device to replace the dock, and there is no need to spend time coordinating an idle dock, thereby improving the test efficiency.

Description

Technical Field

[0001] The present invention relates to the field of ship technology, and in particular to a ship performance testing method. Background Art

[0002] Ro-ro ships, ro-ro passenger ships and other ships are equipped with large ship ramps, which are used as passages for people and vehicles to get on and off the ship. During the navigation test of such ships, vehicle loading and unloading tests should generally be carried out to verify the strength of the ship ramp and the passability of vehicles when vehicles get on and off the ship through the ship ramp. At present, vehicle loading and unloading tests are generally carried out at the dock. First, the ship sails to the dock, then the ship ramp is lowered and placed on the dock channel, and then the vehicles drive on and off the ship ramp in turn to obtain the relevant performance parameters of the ship to verify the strength of the ship ramp and the passability of vehicles.

[0003] However, when conducting the above-mentioned loading and unloading tests, the terminal needs to be emptied. Therefore, each time a test is conducted, it is necessary to coordinate an idle ferry terminal for the test. The test coordination is difficult and the test is time-consuming. Summary of the invention

[0004] The present application provides a ship performance testing method, which solves the technical problem that when conducting vehicle loading and unloading tests in related technologies, the dock needs to be cleared, so each test needs to be coordinated with an idle ferry dock to conduct the test, the test coordination is difficult, and the test is time-consuming.

[0005] The present application provides a ship performance test method, the method is used to test the performance parameters of the ship when a vehicle is loaded / unloaded on the ship; the method is implemented by a ship launching device, the ship launching device includes a launching slide and a first inclined ship frame slidably arranged on the launching slide, the first inclined ship frame is horizontally arranged, and the test method includes:

[0006] Driving the vehicle onto the first inclined gantry and stopping after reaching the designated position;

[0007] Move the vessel in the water to one side of the first inclined gantry and fix it, with the bow of the vessel facing the stern of the vehicle;

[0008] Lowering the ship gangplank of the ship so that one end of the ship gangplank is overlapped on the first inclined ship frame, and the ship gangplank is directly facing the rear of the vehicle;

[0009] The vehicle is subjected to loading and unloading tests to obtain performance parameters of the vessel.

[0010] In some embodiments, driving the vehicle onto the first inclined cradle specifically includes: driving the vehicle onto an edge of the first inclined cradle.

[0011] In some embodiments, the ship launching device further includes a second inclined ship frame, and the first inclined ship frame and the second inclined ship frame are arranged side by side, wherein the moving the ship in the water to one side of the first inclined ship frame and fixing it specifically includes:

[0012] The heights of the first inclined ship frame and the second inclined ship frame are adjusted to form a driving entrance between the first inclined ship frame and the second inclined ship frame, the ship moves into the driving entrance in the water, and one end of the ship close to the first inclined ship frame is connected to the first inclined ship frame, and the side of the ship close to the first inclined ship frame is connected to the second inclined ship frame to fix the ship.

[0013] In some embodiments, the moving of the ship in water into the entrance specifically includes: the ship is towed into the entrance by a tugboat.

[0014] In some embodiments, the vessel is connected to the first inclined cradle and the second inclined cradle by means of mooring cables.

[0015] In some embodiments, adjusting the height of the first inclined cradle and the second inclined cradle specifically includes:

[0016] The first inclined cradle is adjusted to be 0-100 mm higher than the lake level; and the second inclined cradle is adjusted to be flush with the freeboard height of the ship.

[0017] In some embodiments, the cable between the vessel and the first inclined cradle is kept in a tensioned state, and the cable between the vessel and the second inclined cradle is kept in a slack state.

[0018] In some embodiments, the performing a loading and unloading test on the vehicle specifically includes:

[0019] Recording the first set of performance parameters of the vessel when the vessel ramp is empty;

[0020] The vehicle reverses through the ship ramp and drives onto the deck of the ship. After the vehicle stops, a second set of performance parameters of the ship is recorded;

[0021] The vehicle drives away from the ship via the ship gangway, and a third set of performance parameters of the ship is recorded.

[0022] In some embodiments, the performance parameters include the draft of the port and starboard sides, bow and stern of the vessel, and the stress and strain of the ramp of the vessel.

[0023] In some embodiments, a stress and strain measuring sensor is provided on the ship gangway to measure the stress and strain of the ship gangway.

[0024] The beneficial effects of this application are as follows:

[0025] The present application provides a ship performance test method, which utilizes the first inclined gantry in the ship launching device to replace the dock, and does not need to spend time coordinating the idle dock, thereby improving the test efficiency. During the test, the vehicle is first driven onto the first inclined gantry, and stops after reaching the designated position to prepare for boarding the ship gangway, and then the ship is moved in the water to one side of the first inclined gantry and fixed to simulate the situation where the ship is docked at the dock, and the bow of the ship is facing the rear of the vehicle, and then the ship gangway of the ship is lowered, so that one end of the ship gangway is overlapped on the first inclined gantry, and the ship gangway is facing the rear of the vehicle, so that the vehicle can be loaded and unloaded. The vehicle enters or leaves the ship through the ship gangway to obtain the performance parameters of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0027] Figure 1 A schematic diagram of a ship performance test provided in this embodiment;

[0028] Figure 2 for Figure 1 A partial enlarged view of

[0029] Figure 3 for Figure 2 Side view of.

[0030] Description of reference numerals:

[0031] 100-ship launching device, 110-winch traction system, 120-launching slide, 130-first inclined ship rack, 140-second inclined ship rack, 200-vehicle, 300-ship, 310-ship gangway, 320-cable, 400-ship launching plaza, 500-tugboat. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] An embodiment of the present application provides a ship performance testing method, which is used to test the performance parameters of the ship when a vehicle is loaded / unloaded on the ship, that is, when the vehicle enters or leaves the ship through the ship's gangway, thereby verifying the strength of the ship's gangway and the passability of the vehicle.

[0034] Combination Figure 1-Figure 3 The ship performance test method provided in the embodiment of the present application is implemented by a ship launching device 100, which includes a winch traction system 110, a launching slide 120 and a plurality of inclined ship frames. The launching slide 120 is a series of inclined and parallel steel rails extending outward and downward from the winch traction system 110 to the river bottom. A plurality of inclined ship frames are horizontally arranged on the launching slide 120, and can move up and down along the launching slide 120 under the traction of the winch traction system 110, and the plurality of inclined ship frames can operate independently or synchronously. When the ship 300 is launched, the ship 300 is first transferred to the inclined ship frame, and then under the traction of the winch traction system 110, the inclined ship frame carries the ship 300 and gradually slides underwater along the launching slide 120, thereby realizing the smooth launching of the ship 300. Specifically, when performing the performance test of the ship 300, one of the inclined ship frames is selected as the first inclined ship frame 130 in this embodiment, and the test method includes:

[0035] S1: driving the vehicle 200 onto the first inclined gantry 130 and stopping after reaching a designated position;

[0036] A ship launching plaza 400 is provided on one side of the launching slide 120, and the first inclined ship frame 130 can be selected as an inclined ship frame close to the ship launching plaza 400, and the height of the first inclined ship frame 130 is adjusted so that the first inclined ship frame 130 is flush with the ship launching plaza 400, so that the vehicle 200 can directly drive into the first inclined ship frame 130 from the ship launching plaza 400. The vehicle 200 can be parked at a position close to the edge of the first inclined ship frame 130 to shorten the travel of the vehicle 200 to subsequently drive into the ship ramp 310.

[0037] S2: Move the vessel 300 in the water to one side of the first inclined gantry 130 and fix it, with the bow of the vessel 300 facing the stern of the vehicle 200;

[0038] The ship 300 can be towed by the tugboat 500 to move in the water. In the related art, the performance test of the ship 300 can only be carried out during the navigation test when the ship 300 has the autonomous navigation capability. In this embodiment, since the ship 300 can be towed by the tugboat 500, the test can be carried out in advance at the mooring test stage, which helps to shorten the test period.

[0039] S3: lowering the ship gangway 310 of the ship 300 so that one end of the ship gangway 310 overlaps the first inclined ship frame 130, and the ship gangway 310 faces the rear of the vehicle 200;

[0040] One end of the ship gangway 310 is overlapped on the first inclined ship frame 130 to form a passage for the vehicle 200 to enter or leave the ship 300 . The ship gangway 310 faces the rear of the vehicle 200 , so that the vehicle 200 can directly enter the ship gangway 310 .

[0041] S4: Perform loading and unloading tests on the vehicle 200 to obtain performance parameters of the ship 300.

[0042] The loading and unloading test specifically includes: recording a first set of performance parameters of the ship 300 when the ship ramp 310 is unloaded; recording a second set of performance parameters of the ship 300 after the vehicle 200 reverses through the ship ramp 310 and enters the deck of the ship 300 and stops steadily; recording a third set of performance parameters of the ship 300 after the vehicle 200 leaves the ship 300 through the ship ramp 310. The strength of the ship ramp 310 and the passability of the vehicle 200 can be verified through these three sets of performance parameters.

[0043] Specifically, the performance parameters include the draft of the port and starboard sides, bow and stern of the ship 300 and the stress and strain of the ship gangway 310. The stress and strain of the ship gangway 310 can be measured by arranging a stress and strain measuring sensor on the ship gangway 310.

[0044] The embodiment of the present application provides a ship performance test method, which utilizes the first inclined gantry 130 in the ship launching device 100 to replace the dock, and does not need to spend time coordinating the idle dock, thereby improving the test efficiency. During the test, the vehicle 200 is first driven onto the first inclined gantry 130, and stops after reaching the designated position to prepare for boarding the ship ramp 310, and then the ship 300 is moved in the water to one side of the first inclined gantry 130 and fixed to simulate the situation where the ship 300 is docked at the dock, and the bow of the ship 300 is facing the rear of the vehicle 200, and then the ship ramp 310 of the ship 300 is lowered, so that one end of the ship ramp 310 is overlapped on the first inclined gantry 130, and the ship ramp 310 is facing the rear of the vehicle 200, so that the vehicle 200 can be loaded and unloaded. The vehicle 200 enters or leaves the ship 300 through the ship ramp 310 to obtain the performance parameters of the ship 300.

[0045] Furthermore, the ship launching device 100 further includes a second inclined ship frame 140, the first inclined ship frame 130 and the second inclined ship frame 140 are arranged side by side, of course, a ship launching plaza 400 is provided on one side of the first inclined ship frame 130, and the second inclined ship frame 140 is arranged on the side of the first inclined ship frame 130 away from the ship launching plaza 400. Among them, moving the ship 300 in the water to one side of the first inclined ship frame 130 and fixing it specifically includes:

[0046] The heights of the first inclined cradle 130 and the second inclined cradle 140 are adjusted to form a driving entrance between the first inclined cradle 130 and the second inclined cradle 140, and the ship 300 moves to the driving entrance in the water. Of course, the ship 300 is towed to the driving entrance by a tugboat, and one end of the ship 300 close to the first inclined cradle 130 is connected to the first inclined cradle 130, and one side of the ship 300 close to the first inclined cradle 130 is connected to the second inclined cradle 140 to fix the ship 300.

[0047] Specifically, both the vehicle 200 and the ship 300 can be parked horizontally to facilitate the ship gangway 310 to be aligned with the rear of the vehicle; and the ship 300 can be connected to the first inclined gantry 130 and the second inclined gantry 140 by means of mooring, and two mooring points can be set respectively. Among them, in order to prevent the ship 300 from shaking when the vehicle 200 gets on and off the ship through the ship gangway 310, the ship 300 needs to lean on the second inclined gantry 140. In order to avoid scratches on the surface of the ship 300, a rubber pad can be set between the ship 300 and the second inclined gantry 140.

[0048] The cable 320 between the ship 300 and the first inclined cradle 130 is kept in a tensioned state, that is, the cable 320 connecting the ship 300 and the first inclined cradle 130 is tightened after the position on the ship gangway 310 is determined, to ensure that the impact when the vehicle 200 goes up and down will not cause the ship 300 to slide, and the cable 320 between the ship 300 and the second inclined cradle 140 is kept in a loose state to ensure that the force will not be transmitted to the side cable 320 when the vehicle 200 gets on and off the ship.

[0049] Further, adjusting the heights of the first inclined cradle 130 and the second inclined cradle 140 specifically includes:

[0050] The first inclined cradle 130 is adjusted to be 0-100 mm above the lake level to simulate the height of the dock; the second inclined cradle 140 is adjusted to be flush with the freeboard height of the ship 300 to facilitate the ship 300 to dock on the second inclined cradle 140.

[0051] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A ship performance testing method, characterized in that: The method is used to test the performance parameters of the ship when a vehicle is loaded / unloaded on the ship; the method is implemented by a ship launching device, the ship launching device includes a launching slide and a first inclined ship frame slidably arranged on the launching slide, the ship launching device also includes a second inclined ship frame, the first inclined ship frame is horizontally arranged, and the first inclined ship frame and the second inclined ship frame are arranged side by side, and the test method includes: Driving the vehicle onto the first inclined gantry and stopping after reaching the designated position; Move the vessel in the water to one side of the first inclined gantry and fix it, with the bow of the vessel facing the stern of the vehicle; Lowering the ship gangplank of the ship so that one end of the ship gangplank is overlapped on the first inclined ship frame, and the ship gangplank is directly facing the rear of the vehicle; Carrying out loading and unloading tests on the vehicle to obtain performance parameters of the vessel; Among them, moving the ship in the water to one side of the first inclined ship frame and fixing it specifically includes: adjusting the heights of the first inclined ship frame and the second inclined ship frame to form a driving entrance between the first inclined ship frame and the second inclined ship frame, the ship moves in the water to the driving entrance, and the side of the ship close to the first inclined ship frame is connected to the first inclined ship frame, and the side of the ship close to the second inclined ship frame is connected to the second inclined ship frame, so that the ship is fixed.

2. The ship performance testing method according to claim 1, characterized in that: Said driving the vehicle onto the first inclined cradle specifically includes: driving the vehicle onto the side of the first inclined cradle.

3. The ship performance testing method according to claim 1, characterized in that: The ship moves in the water into the entrance, specifically comprising: the ship is towed into the entrance by a tugboat.

4. The ship performance testing method according to claim 1, characterized in that: The ship is connected to the first inclined ship frame and the second inclined ship frame by means of mooring cables.

5. The ship performance testing method according to claim 4, characterized in that: The adjusting the height of the first inclined ship frame and the second inclined ship frame specifically includes: The first inclined cradle is adjusted to be 0-100 mm higher than the lake level; and the second inclined cradle is adjusted to be flush with the freeboard height of the ship.

6. The ship performance testing method according to claim 4, characterized in that: The cable between the ship and the first inclined ship frame is kept in a tensioned state, and the cable between the ship and the second inclined ship frame is kept in a loose state.

7. The ship performance testing method according to claim 1, characterized in that: The loading and unloading test on the vehicle specifically includes: Recording the first set of performance parameters of the vessel when the vessel ramp is empty; The vehicle reverses through the ship ramp and drives onto the deck of the ship. After the vehicle stops, a second set of performance parameters of the ship is recorded; The vehicle drives away from the ship via the ship gangway, and a third set of performance parameters of the ship is recorded.

8. The ship performance testing method according to claim 7, characterized in that: The performance parameters include the draft of the port, starboard and bow of the ship and the stress and strain of the ship's gangway.

9. The ship performance testing method according to claim 8, characterized in that: The ship gangway is provided with a stress and strain measuring sensor to measure the stress and strain of the ship gangway.

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